Investing and returns calculators
Measure what an investment really earned, what inflation takes back, and how long it takes to reach a big goal.
9 free calculators
Inflation Calculator
See what today's money could buy in the future, and how inflation reduces your purchasing power.
Open calculator →ROI Calculator
Work out your return on investment as a percentage and as an annual rate.
Open calculator →Dividend Income Calculator
Estimate dividend income over time as the payout grows each year.
Open calculator →CAGR Calculator
Calculate compound annual growth rate for an investment, business or any value.
Open calculator →Stock Profit Calculator
Work out profit or loss on a trade including fees and break-even price.
Open calculator →How Long to Become a Millionaire?
Find how many years it will take to reach $1 million (or any goal) with monthly investing.
Open calculator →Real Return Calculator (After Fees, Tax and Inflation)
See what your investments are really worth in today's money after fund fees, tax on gains and inflation.
Open calculator →Capital Gains Tax Calculator (US 2025)
Estimate federal tax on profit from selling stocks, crypto or property, short-term against long-term, plus the 3.8% investment tax.
Open calculator →Lump Sum vs Dollar-Cost Averaging Calculator
Test investing a windfall all at once against spreading it over months, with 2,000 simulated markets.
Open calculator →Money guides for Investing & Returns
All guides →Investing for Beginners: A Simple Plan with the Numbers
A plain-English starter plan for investing: low-cost index funds, regular contributions and why fees matter.
Read guide →Compound Interest Explained (and Why Starting Early Wins)
How compound interest works, the rule of 72, and a simple example showing why time matters most.
Read guide →How to Save Money: 10 Practical Ways with Real Numbers
Ten proven ways to save money, each with the math showing how much you can keep every year.
Read guide →Lump Sum vs Dollar-Cost Averaging
Should you invest a windfall all at once or spread it out? What the history and simulations show, and how to choose.
Read guide →Capital Gains Tax Explained: Short vs Long Term
How selling an investment is taxed, why holding for over a year can cut the rate, and how to estimate the bill before you sell.
Read guide →Real Return: What Fees, Tax and Inflation Take
Why a 7% headline return can feel much smaller, and how to measure growth in today's money after costs.
Read guide →Other calculator categories
Mortgage & Home Buying
Work out your monthly payment, how much house you can afford, and whether renting or buying wins.
- Mortgage Calculator
- How Much House Can I Afford?
- Refinance Break-Even Calculator
- Down Payment Savings Calculator
Loans & Car Finance
See what a loan really costs, how much car you can afford, and how much interest an extra payment saves.
- Loan Payment Calculator
- Car Loan Calculator
- Car Affordability Calculator
- Student Loan Payoff Calculator
Debt Payoff
Find the fastest and cheapest way out of debt, and see if a balance transfer is worth the fee.
- Credit Card Payoff Calculator
- Debt-to-Income (DTI) Calculator
- Debt Payoff Planner (Snowball vs Avalanche)
- Balance Transfer Calculator
Savings & Interest
See how small amounts grow, how long a savings goal takes, and how much cushion you really need.
- Compound Interest Calculator
- Savings Goal Calculator
- Simple Interest Calculator
- Savings Interest (APY) Calculator
Retirement Planning
See how much you need to retire, what your 401k can become, and how long your money will last.
- Retirement Savings Calculator
- FIRE Number Calculator
- Roth vs Traditional IRA Calculator
- 401(k) Calculator with Employer Match
Budgeting & Net Worth
Plan your month, check your financial health, fix a deficit and plan big events with clear numbers.
- 50/30/20 Budget Calculator
- Net Worth Calculator
- Monthly Financial Planner
- Wedding Budget Calculator
Smart Spending & Shopping
Check a deal, split a bill, and see what small daily habits and subscriptions really cost over the years.
- Tip & Bill Splitter
- Percentage Calculator
- Discount Calculator
- Sales Tax & VAT Calculator
Salary & Pay
Know what your time is worth, what a raise adds up to, and which job offer is really better.
- Salary to Hourly Calculator
- Hourly to Salary Calculator
- Overtime Pay Calculator
- Pay Raise Calculator
Side Hustle & Business
Price your work, check whether a side hustle is profitable, and find your break-even point.
- Freelance Hourly Rate Calculator
- Profit Margin & Markup Calculator
- Break-Even Calculator
- Seller Profit Calculator (Etsy, eBay, Amazon)